RFC 546 TENEX Load Averages for July 1973 10 August 1973 3. The curve for ISI is smoother than the one for BBN: the "coffee break" dip appears only as a decrease in slope; the dinner break and evening peak are completely smoothed out. This smoothing is probably due to the influence of the West Coast users of the ISI machine. 4. During July the BBN system was more heavily loaded than the ISI system. Since the data collected did not include the number of active jobs it is not possible to determine from the data whether BBN had more users or just more demanding users. The data presented on the graph is available as a side effect of the RSEXEC system. The server programs for the RSEXEC system (RSSER programs) communicate regularly with one another exchanging status information. The RSSER program at each site maintains a (dynamic) data base of the information it collects from the RSSER programs at other sites. The NETLOAD command of the TENEX EXEC, as well as many RSEXEC commands, makes use of information in that database. The raw data for BBN and ISI [2] load curves (as well as data for the other TENEX sites that run RSSER) was collected by a program which creates daily load information files by periodically (every 3 minutes) reading load average data from the data base maintained by RSSER. The monthly summary was produced by a program that analyzes daily data files. [The following graph is also available in .PS and .PDF format.] Thomas